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Miniature air gap inspection device

  • US 6,100,711 A
  • Filed: 03/24/1998
  • Issued: 08/08/2000
  • Est. Priority Date: 03/24/1998
  • Status: Expired due to Term
First Claim
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1. A miniature air gap inspection device for inspection of a generator stator and a generator field with the generator field in place, the inspection device passing through a radial air gap between a core iron and a retaining ring of the generator, the inspection device comprising:

  • a tractor section having a tractor frame that is selectively attached to the retaining ring for circumferential positioning about the field;

    a mast section coupled with the tractor frame and comprising an extendible mast; and

    an inspection head coupled with the extendible mast, the inspection head supporting at least one inspection tool for performing in-situ generator inspections.

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